Fitment issue with 86 car upgraded to 87 chain tensioner
03-19-2014, 02:16 AM
#1
Racer
Thread Starter
Fitment issue with 86 car upgraded to 87 chain tensioner
Ive read a few places that I need to kink one of the lines and everything should match up otherwise. Well as it turns out the drivers side line was perfect and the passenger is totally wrong. I mean no kinking or flipping or re-orienting it will do. In fact it would be the correct shape if the oil pick up from the head were on the exhaust side. The only thing wrong with the original 86 line is that the banjo is larger, so technically if I tapped it it would theoretically fit. I dont want to do this. Make sense?
I got the part from International used of an 87 car. I havent seen any posts that relate to my fitment issue and wanted to get some insight from the forum.
I got the part from International used of an 87 car. I havent seen any posts that relate to my fitment issue and wanted to get some insight from the forum.
03-20-2014, 12:44 AM
#3
Nordschleife Master
I've done this before myself but do not recall it being an issue at all and just tweaking the line made it fit.
But it has been awhile. Maybe you can post a picture showing what you have and we can further assess.
But it has been awhile. Maybe you can post a picture showing what you have and we can further assess.
03-20-2014, 02:43 AM
#5
Former Vendor
Correct. One line fits and the other line is virtually hopeless.....although as I recall, there is an issue with the size of the banjos bolts. Porsche offered oil lines and new banjo bolts for this conversion, but they have not been available for years.
Last time I needed one, I went over to 928 International and dug through their box of lines and fittings. They have the correct parts, most likely. They just are not going to be able to recognize them....they have no clue what you are looking for.
If you can't solve it by heating, twisting, and hammering on it (Colin is a "backyard hack" and a specialist at using the improper part for a job....he might be able to tell you how to rig up the thing to fit....) yell and I'd be glad to go by 928 International and see if I can find you the proper line/lines. (I prefer to use the proper part for the job....I'm the 928 "long term" repair guy.)
Last time I needed one, I went over to 928 International and dug through their box of lines and fittings. They have the correct parts, most likely. They just are not going to be able to recognize them....they have no clue what you are looking for.
If you can't solve it by heating, twisting, and hammering on it (Colin is a "backyard hack" and a specialist at using the improper part for a job....he might be able to tell you how to rig up the thing to fit....) yell and I'd be glad to go by 928 International and see if I can find you the proper line/lines. (I prefer to use the proper part for the job....I'm the 928 "long term" repair guy.)
Last edited by GregBBRD; 03-20-2014 at 04:26 AM.
03-20-2014, 01:49 PM
#6
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I did this update on the '85 S3-- Here is the document from the forum I used as a reference-- Tom from 928 Int'l sent me everything I needed (list at bottom). Slight bending of one pipe, but no big deal. Hope it helps.
You'll need the tensioners from an '87+ engine. I think brand new tensioners will come with new pads. If you get used tensioners, you should probably suck it up and buy the ridiculously overpriced upper and lower pads so you can install the tensioners with good pads.
If you get new tensioners, they won't have banjo bolts. The '85 engine has two of the four that you'll need, so you'll need to get the other two. I am referring to part#: 928 105 476 00. Due to the slight plumbing differences from '85 to '86 I'm not sure if the '86 has two or all four banjo bolts that you'll need.
The washers on the bolts that secure the tensioner to the head on the '85 are too large to work on the updated tensioner. The bolts from the tensioners I bought used did not have washers even though PET says they should have them. I didn't bother with washers. I have no reason to think that those tensioners had ever been touched prior to me removing them, so I assume that Hans or Fritz had too many beers with lunch the day they built that engine. I didn't bother to look for replacements.
The oil pipes cause the most confusion and they should. If you have a '85, you will need to replace both oil pipes. On the passenger side, you use part#: 928 105 213 03. On the driver's side, you use part#: 928 105 214 04 and you will have to bend it to make it fit properly. If you have a '86 you will already have the correct pipe for the passenger side. I read somewhere that the '86 also has the correct pipe on the driver's side as well.
A final note on washers. Whether '85/'86 or '87+, PET shows that two washers are used on the banjo fitting of the oil pipe where it attaches to the head. On the '89 that I took the tensioners from, there was only one washer between the head of the banjo bolt and the banjo fitting, but there was none between the fitting and the head. It was the same when I removed the tensioners from my '85 as well. The reason I raise this point is because a lot of people talk about changing their tensioner pads and always ask what size the washer is because they think they dropped the lower one into the oil pan. I'm beginning to wonder if a lot of these cars simply didn't have that second washer when the engine was built.
Item Qty Qty Qty Expected
Number Description Ord. Shp. Bck. By
---------- ------------------------------ -------- -------- -------- --------
U928 105 0 Used Chain Tensioner 1-4 45' 1.00 1.00 0.00
28 08 Angle
U928 105 0 Used Chain Tensioner 5-8 1.00 1.00 0.00
27 08
U928 105 2 Used Oil Pipe 87-95 Tensoner 1.00 1.00 0.00
13 04
U928 105 2 Used Oil Pipe 1.00 1.00 0.00
14 04
U928 105 4 Used Hollow Bolt 4.00 4.00 0.00
76 00
900 123 05 Sealing Ring 4.00 4.00 0.00
0 30
You'll need the tensioners from an '87+ engine. I think brand new tensioners will come with new pads. If you get used tensioners, you should probably suck it up and buy the ridiculously overpriced upper and lower pads so you can install the tensioners with good pads.
If you get new tensioners, they won't have banjo bolts. The '85 engine has two of the four that you'll need, so you'll need to get the other two. I am referring to part#: 928 105 476 00. Due to the slight plumbing differences from '85 to '86 I'm not sure if the '86 has two or all four banjo bolts that you'll need.
The washers on the bolts that secure the tensioner to the head on the '85 are too large to work on the updated tensioner. The bolts from the tensioners I bought used did not have washers even though PET says they should have them. I didn't bother with washers. I have no reason to think that those tensioners had ever been touched prior to me removing them, so I assume that Hans or Fritz had too many beers with lunch the day they built that engine. I didn't bother to look for replacements.
The oil pipes cause the most confusion and they should. If you have a '85, you will need to replace both oil pipes. On the passenger side, you use part#: 928 105 213 03. On the driver's side, you use part#: 928 105 214 04 and you will have to bend it to make it fit properly. If you have a '86 you will already have the correct pipe for the passenger side. I read somewhere that the '86 also has the correct pipe on the driver's side as well.
A final note on washers. Whether '85/'86 or '87+, PET shows that two washers are used on the banjo fitting of the oil pipe where it attaches to the head. On the '89 that I took the tensioners from, there was only one washer between the head of the banjo bolt and the banjo fitting, but there was none between the fitting and the head. It was the same when I removed the tensioners from my '85 as well. The reason I raise this point is because a lot of people talk about changing their tensioner pads and always ask what size the washer is because they think they dropped the lower one into the oil pan. I'm beginning to wonder if a lot of these cars simply didn't have that second washer when the engine was built.
Item Qty Qty Qty Expected
Number Description Ord. Shp. Bck. By
---------- ------------------------------ -------- -------- -------- --------
U928 105 0 Used Chain Tensioner 1-4 45' 1.00 1.00 0.00
28 08 Angle
U928 105 0 Used Chain Tensioner 5-8 1.00 1.00 0.00
27 08
U928 105 2 Used Oil Pipe 87-95 Tensoner 1.00 1.00 0.00
13 04
U928 105 2 Used Oil Pipe 1.00 1.00 0.00
14 04
U928 105 4 Used Hollow Bolt 4.00 4.00 0.00
76 00
900 123 05 Sealing Ring 4.00 4.00 0.00
0 30
03-20-2014, 03:23 PM
#7
Rennlist Member
Yep ^^^^ did both of my 85 and 86.5 engines and sourced all parts from 928 international.
Found same no washers on Banjo to head, I put them on as I had new ones.
Also if you have to "reform" the tubing to fit under the Cam and get the correct angle on the Banjo to Tensioner, place pipe a vice protected by wood and use heat before bending it, go very slowly, little at a time.
Found same no washers on Banjo to head, I put them on as I had new ones.
Also if you have to "reform" the tubing to fit under the Cam and get the correct angle on the Banjo to Tensioner, place pipe a vice protected by wood and use heat before bending it, go very slowly, little at a time.
